A machine that converts energy into motion or mechanical work.

• A device producing power to drive mechanisms.

将能量转化为运动或机械功的机器。

• 产生动力以驱动机构的装置。

The power unit of a car or other vehicle.

• Usually an internal-combustion or electric motor.

汽车或其他车辆的动力装置。

• 通常为内燃机或电动机。

A self-propelled railway vehicle that pulls or pushes trains.

• A locomotive.

牵引或推送列车的自走式机车车辆。

• 即机车。

A software or hardware core that performs a specific task.

• Used for search, graphics, or physics processing.

执行特定任务的软件或硬件核心。

• 如搜索、图形或物理引擎。

A person, factor, or institution that drives progress.

• The main force behind a process or change.

推动进步的个人、因素或机构。

• 某过程或变革背后的主要动力。